JP3441136B2 - Tightening band - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening band, and more specifically, to tighten a tightening object by reducing the diameter of a ring-shaped member formed by winding a belt-like member around a tightening object such as a hose. Regarding the attached band.

[0002]

2. Description of the Related Art A metal tightening band shown in FIG. 6 is used as a tightening band for tightening a connecting part of a hose such as a gas hose or an automobile boot to connect it to a predetermined device. This tightening band is shown in FIG. The tightening band shown in FIG. 6 includes a ring-shaped body formed by winding the strip-shaped body 7 around a connecting portion of a fastening object such as a pipe and overlapping both ends, and a gate-shaped body in the outer peripheral direction on the outer peripheral portion 7 a of the band-shaped body 7. A protruding ear 8 is provided. When the ears 8 are crushed, the ears 8 reduce the diameter of the ring-shaped body in the direction in which the object to be fastened is tightened.

[0003]

By using the tightening band shown in FIG. 6, the strip 7 is wound around the connection part of the object to be fastened even after the object to be fastened is connected to the pipe or the like. It is possible to tighten the object to be fastened. But,
The tightening band shown in FIG. 6 has a band-shaped body 7 so that a predetermined tightening force can be exerted on an object to be fastened by crushing the ears 8.
Fixing both ends of the strip-shaped body 7 while maintaining the tightly bound state after winding the item in a tightly bound state around the object to be fastened complicates the tightening work. On the other hand, when the band-shaped body 7 is loosely wound around the object to be fastened and the overlapping both ends are fixed, the object to be fastened cannot be tightened with the intended tightening force even if the ears 8 are crushed. Also, the crushed ear 8
6 is accompanied by a springback phenomenon in the direction of the arrow shown in FIG. 6 and has a drawback that the initial tightening force of the ring-shaped body cannot be maintained. Therefore, an object of the present invention is to provide a tightening band that can easily exert a predetermined tightening force and reduce the initial tightening force by reducing the diameter of a ring-shaped body formed by winding a band-shaped body around an object to be fastened. To provide.

[0004]

Means for Solving the Problems As a result of studies to achieve the object of the present invention, the present inventor found that when a strip is wound around an object to be fastened, the strip is formed on one of both ends of the strip. The overlapped end portions of the strip-shaped body are temporarily fixed by the engaging portions to form a ring-shaped body, and then the fitting formed on the overlapped end portions when the ring-shaped body is reduced in diameter by using a tightening tool. The present invention has been achieved by finding that the work of tightening the object to be fastened can be easily performed and the initial fastening force can be retained by fitting the joint portion.

The present invention has the following configuration. Made of metal
From one end of the strip-shaped body 10a to the strip-shaped body 10a
The strip-shaped small pieces 10b made of metal, which are short and thick, are connected.
Temporarily fix the band-shaped body 10 in a ring shape, and draw both ends to shrink it.
The tightening band that tightens the object to be tightened by
In addition, the strip-shaped small piece 10b is the inside of the strip-shaped body 10a.
The gate is connected to the peripheral surface and is located in the middle of the strip 10b.
Formed holes 22b and 18b are formed in this order toward the tip.
And a connecting portion of the strip-shaped body 10a with the strip-shaped small piece 10b.
A long hole-like locking hole 14 is formed in the vicinity, and a connecting portion is provided at the other end.
Projections 24, 18a, 2 having opening holes directed in the direction
2a and hook 12 are formed in this order toward the other end
The hook portion 12 is locked in the locking hole 14.
The projection 18a into the portal hole 18b and the projection 22a into the portal shape.
The belt-shaped body 10 is temporarily fixed in a ring shape by being locked in the holes 22b.
And lock the tool on the projection 24 and the portal hole 18b.
By pulling, the protrusion 18a and the gate-shaped hole 22b
And the protruding portion 22a to the connecting end of the strip-shaped small piece body 10b.
It is characterized in that the diameter is reduced by engaging with the portion 25 .

Further , a belt-like body connected to the belt-like body 10a
Since the plate thickness of the small piece 10b can be increased to improve the rigidity,
The belt-shaped body 10a can be made thin and deformation of the fitting part can be prevented.
It In addition, the strip-shaped body is attached to the connecting end portion 25 of the strip-shaped small piece 10b.
The concave portion 26 into which the protrusion 22a of 10a can enter is formed.
Case, or the recess 26 can enter the opening of the protrusion 22a.
If the projection 30 is effective, make sure to use the detent.
It can be done.

[0007]

According to the present invention, the hook portion 12 is attached to the locking hole 14.
The projection 18a is locked in the portal hole 18b and the projection 22a
The belt-shaped body 10 is ring-shaped by locking the
Is temporarily fixed to the projection 24 and the portal hole 18b, and the tool is engaged.
By stopping and pulling, the projection 18a and the gate hole 2
2b, and the protruding portion 22a is attached to the strip-shaped small piece 10b.
The diameter is reduced by locking the connecting end portion 25. At this time,
Overlapping part of the strip body 10a and the strip piece 10b
For fitting the protruding portion 18a formed at the position and the gate-shaped hole 22b
The reduced diameter state is further maintained, and the protrusion 22a and the connecting end 25
The return of the reduced-diameter state of the belt-shaped member 10 is prevented by the locking of the band
It is possible to maintain the initial reduced diameter state of the sheet 10 .

[0008]

Embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a partial front view [FIG. 1 (a)] and a partial vertical sectional view [FIG. 1 (b)] showing an embodiment of the present invention. The band-shaped body 10 shown in FIG. 1 (a) is provided on the inner peripheral surface side of one end of the metal band-shaped body 10a.
One end of a metal strip 10b made of a metal shorter than a is connected by spot welding or the like. The connecting end of the strip-shaped small piece body 10b constituting the strip-shaped body 10
A recess 26 is formed in 25, and portal holes 22b and 18b are provided in the middle of the strip-shaped small piece 10b toward the tip.
It is provided in this order . Further, the strip-shaped small piece 10a
The other end of the is also provided with a protrusion 20 having an opening hole facing the connecting portion.

The strip body 10a connected to the strip body 10b is provided with a slot-like locking hole 14 in the vicinity of the connecting portion with the strip body 10b, and the other end of the strip body 10a is provided. The projections 24, 18a, 22a each having an opening formed in the direction of the connecting portion are arranged in series in the tip direction of the other end. In addition, the protrusion 2 of the strip body 10a
A U-shaped stopper 16 is fixedly attached between the hooks 4 and 18a, and a hook portion in which a part of the belt-shaped body 10a is cut and raised near the other end of the belt-shaped body 10a. 12 are formed. Thus, in this embodiment,
As shown in FIG. 1B, the strip-shaped small piece body 10b connected to the strip-shaped body 10a is thicker than the strip-shaped body 10a, and the rigidity is improved. For this reason, even if the strip body 10a is made thin, the rigidity of the overlapping portion of the strip bodies 10 forming the ring body can be maintained, and deformation of the fitting portion described later can be prevented, so that the ring body can be reduced in diameter. The tightening force generated as a result can be maintained.

When tightening the object to be fastened using the band-shaped body 10 shown in FIG. 1, the band-shaped body 10 is wound around the object to be fastened and is formed at the end of the band-shaped small piece 10a as shown in FIG. The hook portion 12 is engaged with the elongated hole-shaped locking hole 14 to form the belt-shaped body 10 into a ring-shaped body. By such engagement, the strip 1
Even if the force applied when winding 0 is released, the band-shaped body 10 can maintain the shape of the ring-shaped body, and the work of reducing the diameter of the ring-shaped body can be easily performed. In the diameter reduction work for reducing the diameter of the ring-shaped body, as shown in FIG. 2, the gate-shaped hole 18b of the strip-shaped small piece body 10b which is the tool locking portion and the strip-shaped body main body 1 are provided.
The tip of the tightening tool 30 is locked to the protrusion 24 of 0a, and the band-shaped body 10a and the band-shaped small piece body 10b are moved by the tightening tool 30 in the arrow A direction shown in FIG.

[0011] Such diameter reduction work, continuous strip-like small pieces 10b
As shown in FIG. 3 and FIG. 4B, the process is performed until the protrusion 22a of the strip body 10a comes into contact with the connection end 25 . Therefore, the protrusion 22a also plays a role of a stopper when the diameter of the ring-shaped body is reduced. Here, the concave portion 2 of the connecting end portion 25
When the projecting portion 22a comes into contact with 6, the gate-shaped hole 22b of the strip-shaped small piece body 10b and the projecting portion 18a of the strip-shaped body 10a are fitted together, and the standing piece 16 of the stopper 16 is engaged, as shown in FIG.
The portion of the protruding portion 20 of the strip-shaped piece 10b and the gate-shaped hole 18b is located between a and 16b. In addition, the band-shaped body 10a and the band-shaped small piece 10b are tightened in the direction of the arrow A shown in FIG.
When the hook portion 12 is moved by 0, the hook portion 12 moves in the elongated hole-shaped locking hole 14 together with the belt-shaped body 10a. Then
When the strip-shaped small piece body 10b is fixed by pushing down the standing pieces 16a and 16b of the stopper 16, as shown in FIG. 4 (a), the raised pieces 16a and 16b of the stopper 16 pushed down and the protruding portion 20 of the belt-shaped small piece body 10b. And abut each other to prevent the end of the strip-shaped small piece 10b from coming off the stopper 16.

The ring-shaped body thus reduced in diameter is fitted with the projection 18a of the strip-shaped body 10a and the gate-shaped hole 22b of the strip-shaped small piece 10b, and the stopper 16 and the projection of the strip-shaped small piece 10b. The contact with 20 can maintain the reduced diameter state and maintain the initial tightening force. In addition, in the ring-shaped body formed by the tightening band of the present embodiment, FIG.
Compared with the conventional tightening band shown in Fig. 4, the protruding height of the ring-shaped body protruding in the outer peripheral direction can be made as low as possible, so that the other part of the component to which the tightening band is attached or the tightening band. It is also possible to avoid contact with other parts adjacent to the mounted part to cause damage.

In the embodiment described above, the end faces of the standing pieces 16a, 16b constituting the stopper 16 are made flat, but as shown in FIG. 5 (a), the standing pieces 16a, 16b.
It is also possible to make the end face of the slant end face so that when the upright piece is pushed down, a part of the upright piece can enter the inside from the opening of the projection 20 of the strip body 10a. Also, the strip-shaped piece 10b
Connecting end 25 also, as shown in FIG. 5 (b), when the protrusion 22a of the belt-shaped body 10a is in contact with the recess 26, the
The protrusion 30 formed on the bottom of the recess 26 may enter the inside from the opening of the protrusion 22a.

[0014]

According to the present invention, the tightening work of the object to be tightened by the tightening band can be easily performed, and the tightening work efficiency can be improved. Further, the initial tightening force of the tightened band on the object to be tightened can be maintained, and the reliability of the tightened band can be improved.

[Brief description of drawings]

FIG. 1 is a partial front view and a partial vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing a state in which the tightening band shown in FIG. 1 has a ring shape.

FIG. 3 is a partial cross-sectional view showing a state where the ring-shaped body shown in FIG. 2 has a reduced diameter.

FIG. 4 is a partial plan view showing an end face state of the stopper 16 and the band-shaped small piece body 10b shown in FIG.

FIG. 5 is a partial plan view showing another embodiment.

FIG. 6 is a cross-sectional view showing a mounted state of a conventional tightening band.

[Explanation of symbols]

10 tightening band 12 Engagement part 14 Locking part 16 Stoppers 18b, 24 Tool locking part 18a, 22b Fitting part 30 tightening tools

Claims (3)

(57) [Claims] 1. A metal strip-shaped body 10a is attached to one end thereof.
A metal belt-shaped small body that is shorter and thicker than the belt-shaped body 10a.
The band-shaped body 10 to which the one-body 10b is connected is temporarily fixed in a ring shape.
And pull the ends together to reduce the diameter of the object to be fastened.
In the tightening band to be fitted, the band-shaped small piece body 10b is the inner peripheral surface side of the band-shaped body body 10a.
And the gate-shaped hole 2 in the middle of the strip-shaped small piece 10b.
2b and 18b are formed in this order toward the tip portion, and in the vicinity of a connecting portion of the strip-shaped main body 10a with the strip-shaped small piece body 10b.
A long hole-like locking hole 14 is formed in the
Projections 24, 18a, 22a having opening holes facing toward
And the hook portion 12 is formed in this order toward the other end.
The hook portion 12 is locked in the locking hole 14, and the projection 18
a to the gate-shaped hole 18b and the protrusion 22a to the gate-shaped hole 22b.
The main body 10 of the belt-shaped body is temporarily locked in a ring shape by
A tool is locked to the raised portion 24 and the gate-shaped hole 18b and pulled.
As a result, the protrusion 18a and the portal hole 22b are fitted together.
The projection 22a to the connecting end 25 of the strip 10b.
A tightening band that is locked to reduce the diameter . 2. A connecting end portion 25 of the strip-shaped small piece 10b.
Is a recess 2 into which the protrusion 22a of the strip-shaped body 10a can enter.
6. The tightening band according to claim 1, wherein 6 is formed . 3. The opening of the projection 22a is formed in the recess 26.
A protrusion 30 that can enter
The tightening band according to claim 2 .